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2016 ; 6
(ä): 32610
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Wnt4 is a novel biomarker for the early detection of kidney tubular injury after
ischemia/reperfusion injury
#MMPMID27600466
Zhao SL
; Wei SY
; Wang YX
; Diao TT
; Li JS
; He YX
; Yu J
; Jiang XY
; Cao Y
; Mao XY
; Wei QJ
; Wang Y
; Li B
Sci Rep
2016[Sep]; 6
(ä): 32610
PMID27600466
show ga
Earlier intervention after acute kidney injury would promote better outcomes. Our
previous study found that Wnt proteins are promptly upregulated after ischemic
kidney injury. Thus, we assessed whether Wnt4 could be an early and sensitive
biomarker of tubular injury. We subjected mice to bilateral ischemia/reperfusion
injury (IRI). Kidney and urinary Wnt4 expression showed an early increase at
3?hours and increased further at 24?hours post-IRI and was closely correlated
with histopathological alterations. Serum creatinine slightly increased at
6?hours, indicating that it was less sensitive than Wnt4 expression. These data
were further confirmed by clinical study. Both kidney and urinary Wnt4 expression
were significantly increased in patients diagnosed with biopsy-proven minimal
change disease (MCD) with tubular injury, all of whom nevertheless had normal
estimated glomerular filtration rate (eGFR) and serum creatinine. The increased
Wnt4 expression also strongly correlated with histopathological alterations in
these MCD patients. In conclusion, this is the first demonstration that increases
in both kidney and urinary Wnt4 expression can be detected more sensitively and
earlier than serum creatinine after kidney injury. In particular, urinary Wnt4
could be a potential noninvasive biomarker for the early detection of tubular
injury.
|Acute Kidney Injury/metabolism/pathology
[MESH]
|Adult
[MESH]
|Animals
[MESH]
|Biomarkers/blood/metabolism
[MESH]
|Creatinine/blood
[MESH]
|Female
[MESH]
|Fluorescent Antibody Technique
[MESH]
|Glomerular Filtration Rate
[MESH]
|Hepatitis A Virus Cellular Receptor 1/metabolism
[MESH]